diff --git a/internal/model/dto/wechat_dto.go b/internal/model/dto/wechat_dto.go
index 19f41ec..9439595 100644
--- a/internal/model/dto/wechat_dto.go
+++ b/internal/model/dto/wechat_dto.go
@@ -54,3 +54,17 @@ type WechatPayH5Params struct {
 	ID uint `path:"id" description:"订单ID" required:"true"`
 	WechatPayH5Request
 }
+
+// JSSDKConfigRequest 获取 JSSDK 签名配置请求
+type JSSDKConfigRequest struct {
+	URL string `query:"url" validate:"required" required:"true" description:"当前页面完整 URL（含协议和路径，不含 # 及其后内容）"`
+}
+
+// JSSDKConfigResponse JSSDK 签名配置响应
+// 前端使用这些字段调用 wx.config() 初始化微信 JS-SDK
+type JSSDKConfigResponse struct {
+	AppID     string `json:"app_id" description:"公众号 AppID"`
+	Timestamp int64  `json:"timestamp" description:"时间戳（秒）"`
+	NonceStr  string `json:"nonce_str" description:"随机字符串"`
+	Signature string `json:"signature" description:"签名（SHA1）"`
+}
diff --git a/pkg/wechat/official_account.go b/pkg/wechat/official_account.go
index ad6ccb5..d7bda14 100644
--- a/pkg/wechat/official_account.go
+++ b/pkg/wechat/official_account.go
@@ -8,6 +8,37 @@ import (
 	"go.uber.org/zap"
 )
 
+// GetJSSDKConfig 获取 JSSDK 签名配置
+// url 为当前页面完整 URL（含协议和路径，不含 # 及其后内容）
+func (s *OfficialAccountService) GetJSSDKConfig(ctx context.Context, url string) (*JSSDKConfig, error) {
+	if url == "" {
+		return nil, errors.New(errors.CodeInvalidParam, "页面 URL 不能为空")
+	}
+
+	signMap, err := s.app.JSSDK.ConfigSignature(ctx, url, "", 0)
+	if err != nil {
+		s.logger.Error("获取 JSSDK 签名失败", zap.String("url", url), zap.Error(err))
+		return nil, errors.Wrap(errors.CodeInternalError, err, "获取 JSSDK 签名失败")
+	}
+
+	appID, _ := (*signMap)["appId"].(string)
+	nonceStr, _ := (*signMap)["nonceStr"].(string)
+	timestamp, _ := (*signMap)["timestamp"].(int64)
+	signature, _ := (*signMap)["signature"].(string)
+
+	s.logger.Debug("获取 JSSDK 签名配置成功",
+		zap.String("app_id", appID),
+		zap.String("url", url),
+	)
+
+	return &JSSDKConfig{
+		AppID:     appID,
+		Timestamp: timestamp,
+		NonceStr:  nonceStr,
+		Signature: signature,
+	}, nil
+}
+
 // OfficialAccountService 微信公众号服务实现
 type OfficialAccountService struct {
 	app    *officialAccount.OfficialAccount
diff --git a/pkg/wechat/wechat.go b/pkg/wechat/wechat.go
index 68713cd..4638e2f 100644
--- a/pkg/wechat/wechat.go
+++ b/pkg/wechat/wechat.go
@@ -10,11 +10,23 @@ type Service interface {
 	GetUserInfo(ctx context.Context, code string) (openID, unionID string, err error)
 }
 
+// JSSDKConfig JSSDK 签名配置
+// 用于前端调用 wx.config() 初始化微信 JS-SDK
+type JSSDKConfig struct {
+	AppID     string // 公众号 AppID
+	Timestamp int64  // 时间戳（秒）
+	NonceStr  string // 随机字符串
+	Signature string // 签名（SHA1）
+}
+
 // OfficialAccountServiceInterface 微信公众号服务接口
 type OfficialAccountServiceInterface interface {
 	Service
 	GetUserInfoDetailed(ctx context.Context, code string) (*UserInfo, error)
 	GetUserInfoByToken(ctx context.Context, accessToken, openID string) (*UserInfo, error)
+	// GetJSSDKConfig 获取 JSSDK 签名配置，用于前端调用 wx.config() 初始化
+	// url 为当前页面完整 URL（含协议和路径，不含 # 及其后内容）
+	GetJSSDKConfig(ctx context.Context, url string) (*JSSDKConfig, error)
 }
 
 // PaymentServiceInterface 微信支付服务接口